ucar.unidata.view.sounding

Class ProfileFeatureCell

java.lang.Object

ucar.unidata.view.sounding.ComputeCell

ucar.unidata.view.sounding.ProfileFeatureCell

Direct Known Subclasses:

LfcCell, LnbCell

public abstract class ProfileFeatureCell
extends ComputeCell

Computes the level of a feature from an atmospheric buoyancy-profile.

Version:

$Revision: 1.7 $ $Date: 2005/05/13 18:33:35 $

Author:

Steven R. Emmerson

Field Summary

Fields

Modifier and Type	Field and Description
protected static visad.Real	noData The output "missing data" value.

Constructor Summary

Constructors

Constructor and Description
ProfileFeatureCell(java.lang.String name, visad.DataReference buoyProfileRef) Constructs from data references.

Method Summary

Modifier and Type	Method and Description
protected static visad.Real	interpolatePres(double topPres, double topBuoy, double botPres, double botBuoy, visad.Unit presUnit) Interpolates the pressure at zero buoyancy from bracketing pressures and buoyancies.

Methods inherited from class ucar.unidata.view.sounding.ComputeCell

clean, compute, disableRef, enableAllInputRefs, getInputRefs, getOutputRef, noDataField, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

noData

protected static final visad.Real noData

The output "missing data" value.

Constructor Detail

ProfileFeatureCell

public ProfileFeatureCell(java.lang.String name,
                          visad.DataReference buoyProfileRef)
                   throws visad.VisADException,
                          java.rmi.RemoteException

Constructs from data references. The input buoyancy profile must be ascending.

Parameters:

name - The name of the cell.

buoyProfileRef - The input buoyancy profile reference.

Throws:

visad.VisADException - if a VisAD failure occurs.

java.rmi.RemoteException - if a Java RMI failure occurs.

Method Detail

interpolatePres

protected static final visad.Real interpolatePres(double topPres,
                                                  double topBuoy,
                                                  double botPres,
                                                  double botBuoy,
                                                  visad.Unit presUnit)
                                           throws visad.VisADException

Interpolates the pressure at zero buoyancy from bracketing pressures and buoyancies. The buoyancies must not have the same sign.

Parameters:

topPres - The upper pressure.

topBuoy - The buoyancy at the upper pressure.

botPres - The lower pressure.

botBuoy - The buoyancy at the lower pressure.

presUnit - The unit of pressure.

Returns:

The interpolated pressure at zero buoyancy.

Throws:

visad.VisADException - if a VisAD failure occurs.